Jan-Willem Siebers Bio

Jan-Willem Siebers has been our CEO since January 2025. He is an experienced director with expertise in strategy, transformation and data-driven innovation. Before joining our firm, Jan-Willem was CEO of the Panmuc Group, a group of data-driven research and consultancy firms. He previously led NS Hispeed as CEO, was a member of the Executive Committee of NS, and held various management roles at KLM, both at home and abroad. In addition to his executive roles, he is a supervisory director at NBD Biblion. Jan-Willem studied Business Administration at Erasmus University Rotterdam, completed management programmes at INSEAD and Wharton Business School, and finished the training programme for supervisory directors at Erasmus University Rotterdam.